16.15.236.187
16.15.236.187 is an IPv4 address operated by Amazon.com, Inc. (AS14618), geolocated to Ashburn, United States. As of October 23, 2026, IPDebrief rates it Low Risk (25/100); no anonymizing service was detected.
Intelligence gathered for IP 16.15.236.187 identified the address as an Amazon.com, Inc. asset (AS14618) located in Ashburn, Virginia. The host operated as a Web Server within the AMAZO-4 block, actively serving Amazon S3 traffic over HTTPS and HTTP on ports 80, 443, and 8080. TLS inspection confirmed the certificate subject as s3.amazonaws.com.
The profile recorded a Risk Score of 25 with a Low Risk reputation. While the subnet was classified as mostly clean, the IP generated one threat observation and was listed on one DNS blacklist out of eight checks. Technical analysis revealed a contradiction between the claimed geolocation and RTT physics measurements, as the observed 26ms RTT fell below the 126.2ms minimum possible for the reported distance.
Security assessments tagged the host as Suspicious despite the absence of known attack campaigns. The assessment recommended monitoring the address due to signal contradictions and the single threat observation, noting the infrastructure remained consistent with standard AWS hosting patterns.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Amazon.com, Inc. |
| ASN | AS14618 |
| Network Name | AMAZO-4 |
| CIDR Block | 16.15.0.0/16 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Web Server |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| 8080 | http-alt | tcp | — |
| Closed Ports | 22, 25, 3389, 8443 (3 open / 7 scanned) | ||
| Server | Web server detected |
| HTTP Title | — |
🔐 TLS Certificate
CN=s3.amazonaws.com was found on this IP. This may indicate a previously hosted website, a decommissioned service, or stale infrastructure.| SANs | s3.amazonaws.com*.s3.amazonaws.com*.s3-accesspoint.us-east-1.amazonaws.com*.s3-control.us-east-1.amazonaws.coms3.dualstack.us-east-1.amazonaws.com*.s3-deprecated.us-east-1.amazonaws.coms3-control.dualstack.us-east-1.amazonaws.com*.s3-external-2.amazonaws.coms3.us-east-1.amazonaws.com*.s3-accesspoint.dualstack.us-east-1.amazonaws.com |
| Valid From | 2025-11-18T00:00:00+00:00 |
| Valid Until | 2026-11-06T23:59:59+00:00 (expired) |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_128_GCM_SHA256 |
| Signature Algorithm | sha256RSA |
| Validity Period | 353 days |
🛡️ Public Network Snapshot
| Origin ASN | AS14618 |
| Network Prefix | 16.15.232.0/21 |
| Route mapping | Found |
| HSTS | Not detected |
| CSP | Not detected |
| HTTP/2 | Not detected |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 27% | 2 | 3 |
| ownership | 27% | 2 | 3 |
| reputation | 22% | 1 | 3 |
| geolocation | 27% | 2 | 3 |
| Overall | 24% | 10 | 17 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-01 12:53:40 UTC |
| Last Seen | 2026-10-20 21:11:52 UTC |
| Profile Built | 2026-10-23 21:21:13 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 29 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 16.15.236.187
Who owns the IP address 16.15.236.187?
16.15.236.187 is registered to Amazon.com, Inc.. The address falls within the 16.15.0.0/16 network block. Registration is held at ARIN.
Where is 16.15.236.187 located?
Geolocation data places 16.15.236.187 in Ashburn, VA, United States. The local time zone is America/New_York. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 16.15.236.187 malicious or safe?
16.15.236.187 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
What ports are open on 16.15.236.187?
Responsive ports observed on 16.15.236.187 include 80, 443, 8080. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.